87427299 has 16 divisors (see below), whose sum is σ = 119622272. Its totient is φ = 56766528.

The previous prime is 87427297. The next prime is 87427343. The reversal of 87427299 is 99272478.

It is not a de Polignac number, because 87427299 - 2¹ = 87427297 is a prime.

It is a super-2 number, since 2×87427299² = 15287065220870802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87427297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58212 + ... + 59694.

It is an arithmetic number, because the mean of its divisors is an integer number (7476392).

Almost surely, 2^87427299 is an apocalyptic number.

87427299 is a deficient number, since it is larger than the sum of its proper divisors (32194973).

87427299 is a wasteful number, since it uses less digits than its factorization.

87427299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986.

The product of its digits is 508032, while the sum is 48.

The square root of 87427299 is about 9350.2566274942. The cubic root of 87427299 is about 443.8290115474.

The spelling of 87427299 in words is "eighty-seven million, four hundred twenty-seven thousand, two hundred ninety-nine".